Sheet-delivery mechanism for printing-presses.



.N'o; 881,223. Q PATENTED MAR. 10, 1968. H. P.- BROWZ\T 8; G. L JOHNSTON.

SHEET DELIVERY MECHANISM FOR PRINTING PRB'SSES.

APPLIGA'ION FILED DE .1

U 9 905 asnnnrsw-smn'i 1.,

. PATENTED-MAR. 10, 1908. H. P. BROWN & c. LMJOHNSTON.

SHEET DELIVERY MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED DBO. 9. 1905.

' 3SHE ETSSHEET 2.

0 1 R A m D E T M. TM T PS N H 0 J L G & N W 0 R DD H 3 2 SHEET DELIVERY MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED DEC. 9, 1905. 3 sums-sum w wf I UNITED STATES-EATENT oFFron HORACE PERC-IVAL BROWN AND CLARENCE LORAN JOHNSTON, OF SAN FRANCISCO, CALL FoRNIA, ASSIGNORS To FRANK ssowunnnme'rox, or CHICAGO, ILLmoIsffl SHEET-DELIVERY MECHANISM FOR rmnrme-rnnssnsf No. 881,223. Specification To an whom it may concern:

Be it known that We,HORAOE PEROIVAL BROWN and CLARENCE LORAN JOHNSTON,

- citizens of the United States, residing at San character whereby the desired close relation Francisco, in the county of San Francisco off-upon the table, or, in other words, rolls out from under it, allowing itto fall upon the table.

The primary ob ect'of the invention is to provide sheet delivery mechanism of this between the planes of the sheet delivery members is maintained and their ran e of movement relativel to each other wil be materially increase without increasing the existing dimensions of the machine.

With a view v to the attainment of these ends, the invention consists in the features of novelty whichwill nowbe described with reference to the accompanying drawings, andmore particularly pointed out in the claims.

In the said drawings-Figure 1 is a plan View of a sheet delivery mechanism embodying this invention; Fig. 2 is a vertical section thereof, partly in side elevation; Fig. 3 is a sideelevatio'n thereof with the carriage e);- tended, it being withdrawn in Fig. 2; Flg. 4 1s a detail vertical section on the line 4, 4, Fig.

. 1, on an enlarged scale, showing some of the parts in side elevation; Fig. 5 is a detail sectional view of the cord pulley drlvlng mechanism, and Fig. 6 is a detail section of the holding means of arm' 8 upon the stick 6. v

In this exemplification of the invention one of the two aforesaid sheet conduct-ing or conveying members, comprises a series of traveling tapes upon which the sheets are received, and is fixed. adjacent to theprintf ing mechanism for receiving the sheet as it is dischargedtherefrom, while the other comof Letters Patent.

Application filed December 9, 1905. Serial No. 291,165.

Patented March 10, ions.

prises a series of tapes or cords and-'reci ro-.

cates back and forth-with relation to the t* and is ada ted td follow outwardl with the sheet as it eaves the firstand to r0 outfr'om under the sheet When it returns. The stationary one of these sheet conducting or con veying members may be substantially thesame in construction and arrangement as similar parts of sheet delivery mechanisms of this character'heretofore employed, and preferably comprises tape rollers 1, mountedupon a suitable shaft 2, at one end ofjthe member, and a correspondin number of tape rollers 3 mounted upon s aft 4 at-the other end of such member, 5 being the't'apes which pass around the rollers .1, .3, and the upper folds of which are ,caused to travel towards the left or away from the printingmechanism, so as to conduct or convey the sheet in the pro er delivery direction as it is de osited by t e printing mechanism or otl ier means, the tapes 5 being driven continuously. I v

The tape pulleys 3 are considerably larger in diameter than the shaft-1, and arranged at a sufficient distance apart to leave room between them for the passage of a number of sheet supporting fingers arranged in a series alternating with the tapes 5, and constituting a part of the second or lower one of the aforesaid sheet conducting or conveying members. Thesefingers comprise sticks or arms 6, each rigidly mounted at one endupon a transverse rod 7 or other suitable support, while their other ends are free or independent of each other and carry pulleys S, over whichwpass sheet conducting or conveying cords!) preferably made of leather. Theoppositeend of each one of the fingers 6 is provided with a cord pulley 10, around which the other .ends of the cords 9 pass. The cord pulleys 1,0,are mounted on a cross shaft 14, and secured thereon by a screw 9*, upon one end ofwhich shaft His keyed or otherwise secured a ratchet wheel 15, with which engages a p'awl 17, mounted upon a disk 18. which is free from the shaft 14, but which is rigidly secured to a pinion 19 by a short stud shaft 18, jourri'aled in bracket 27 Pinion 19 engages with the under side of a stationary rack bar 20 Secured to'one of the side rails 21 of the frame, so that as the pinion 19 is moved back and forth with relation to the rack bar fZO i'tf-will be cansed to rotate and its rotation in one direction w1ll be nnp-arted to the shaft ll,

causing the cords 9 to travel in that direction,

byvirtue of the ratchetlB-and pawl 17, whlchlattcris held m engagement with the ratchetwhen the. pmion 19 turns-in one direction by a spring 22, which allows the be rotated, as described, in one direction, and

the series of cords 9 with their supporting sticks 6 maybe reciprocated back and forth wi'thfrelation to the series of tapes 5; any suitable means for supporting and thus moving the movable series of sheet supporting fingers may be en'iployed. 111 this exemplifieation of the invention the sticks (3 are secured to socket pieces 23, which are. adjustably fixed byset screws 24 to the cross-rods 7, and have lugs 25, which support the shaft 14.

The'cross-rod 7 is supported by suitableside arms 2-6 from'two carriages 27, provided with rolls or wheels 28, running on tracks or ways constituted by the side frames 21. These carriages are reciprocated upon their tracks or ways by two links 29, 3t) respectively, which are pivotally connected to two arms 31, 32 respectively mounted upon a rocker-shaftu33, and said shaft, being provided with a crank ar1n34, whereby it may be connected by any suitable means, not necessary to illustrate, with. the operating mechanism of the printing press.

The sheet supporting lingers comprising the sticks 6 and cords 9, are so supported and arranged with relation to the tapes 5 that as thecarriages 27 are reciprocated or caused to travel back and forth in the described manner upon their ways 21, the cords 9 will pass back and forth between the tape rollers 3 above their supporting shaft 4-, and the upper folds of the tapes 9 will occupy a plane slightly below the plane of the upper folds of the tapes 5. 'hen the two sheet conducting members are in their coii'ieident position indicatcd in Fig. 2, the sheet 2; is discharged from the printing mechanism upon the upper folds of the tapes 5, and is urged or propelled forwardly by said tapes until its forward end strikes against a suitable number. of stops or gages 35, which are mounted. upon the carriages?!" in anv suitable way so as to travel with thereciprocating sheet conducting tingers and thus prevent the sheet from tioating 0r discharging from the latter prematurely as the carriage 27 moves forward over the receiving table 4.5.

As the carriage makes its return 1novement, the rotation of the pinion 1.) induced by its engagement with the rack 20,, causes the cords t) to travel towards the left or in a direction away from the tapes 5, and consequently the sheet is propelled or projected from the tapes 9 with a speed in proportion .t their int'lependent travel, and it isallowed to etitle upon the table 45 or other sheet rcceivmg surface as the sheet conducting hngers ti, t) recede from under 1t. The stops 35 are elevated as shown in Fig. 4 by one of the links 29, 30, the link 29.1'01' example, engaging an arm 39 secured to a rocker-shaft 10, upon which all of the stops 35 are mounted and secured and are. held thus elevated during the entire time that the sheet is leaving the cords 9, by any suitable friction or holding means, such, for example, as a dog -16, secured to rocker-sljiaft 40, and arranged to engage the sprin 47 secured to one of the carriages'27, and faced with a piece of leather 48, which will hold thestops 35 elevated against the force of gravity. When the carriage 27 reaches the limit of its return movement towards tapes 5, or is about to arrive at such position, the stops 35 are lowered by the engagement of trip 19 which is secured to shaft 40'and arranged in the line of movement of pin 50, secured to one of the side rails 21, in position to be struck by the. trip 419, as the carriage moves towards the right, see Fig. 2, throwing the dog 4.6 towards the left under the spring 47, which then serves to hold the stops 35 in their depressed position.

The arm 8", which supports the pulley 8 is held in position upon .the stick 6 by the clamp 8 and can be moved lengthwise along the stick for adjusting the whey to take up the slack of the tape, or cord.

Although we have referred to printing mechanism in describing the invention, as an example of one of the devices to which the invention is applicable it will nevertheless be understood that it may be used as a sheet delivery mechanismwherever sheet delivcries are required. F or the want of a better term we employ the word tape as a. generic term for the elements 9, meaning any flexible connection; for obviously the shape of the cross section of these connections is immat erial so far as this invention is concermid in its broadest aspect.

ll aving thus described our invention what we claim as new therein and desire to secure by Letters Patent, is:

1. In a sheet delivery mechanism, a ph1- rality of sheet supporting lingers independent of each other at their ends, and each con1- prising means for propelling the shoot rehttively to itself, in combination with means for reciprocating said fingers said sheet propelling means operating as the lingers are moving.

2. in a sheet delivery mechanism. a pin rality of sheet supporting lingers independent of each other at their ends, and rich coon prising means for propelling the sheet rela tively to itself, in combination with a pluralarrangement with sai fingers... and means for reciprocating said'fi-n'gers with relation to with spaces said'deitices saidsheet propellingineans opcrating-,ais the ers aremoving' 3. In a sheet eliyery mechanism, a .pln-

ra'lity of sheet support ngfingersdndependent-of-eaeh other at theirend's, andeach com-v tively to. itself; in combination with a. plu' rality of tapes. alternating .inarrangement with said fingers for. supporting the-sheet pre aratoryto its deposmnpensaid-fin ers, an meansfor reciprocating said fingers "th relation to'said t'a' 'es,-

4. In ashee't elivery mechanism; a pinrality of sheet supporting fingers independent of each other; at their ends, and each com prising means for propelling the sheet relativ'el'y to itself, in combination with atape' roller shaft, a lura'lity of-tape'rollers thereon 'et'ween them, tapes passing aropnd said rollers, and means-for reciproeating Sald; -fingers: betweensaid' rollers.

5.. In a sheet deliyery, mechanism, a pl'u rality -of sheet supporting-fingers independ'-' ent from each other at their ends and each comprising sheet propelling tapes'andtape operating'means, in combination with means,v

for reciprocating. said fingers bodily, and means ."fOl": depositing the sheet upon said fingers.

6. Ina sheetdeliyery mechanism, a phi-'- ra'lityof sheet supporting fingers independent from each other at their ends and each comprising'a'stick a tape roller mounted at each endof'said stick, and a tape passing around said" rollers, in combination with" ,ineans' for. supporting and reciprocating said fingers as: ,a :whole, means for causing said tapes to'trave'l during. said reciprocation, and

means for depositingsaid sheet upon said 7, ina sheet delivery mechanism, a plu-.

rality of sheeti's'uppo'rting fingers independent from each otherat their ends and each comprising-sheet propelling means,.a shaft.

upon which said fingers are supported and. by which s'aiddfingers are re ciproca ted, ashafts'upported .f upon said carriage and hay ing operative" connection wrth ally-,hfsald sheet; propelling means, arack bar fixed wlth from and indepen rlatirifitosaid carriage, a pinion-engaging sa'ld'rack bar, and: a pawl and ratchet ope-natively connecting said pinion with said. shaft for rotating the shaft "when" the carriage moves "one direction, land means for depositing said s'heetjirpon said fingers.

9. In a sheet delivery niechanism a 'plug I rality ofgslieefgsupporting fi-nger's lndependprising means tor-- 'r'ope'Ilngthesheet'rela-- ent of andse arated fronleac'h other at their ends and eac 1 containing means fer -pro"el-.

ling the sheet relatively to itself, in combma- .tilonfwithawplurali-ty of tapes alternatingl in arrangement with said fingers fOI'jSIiPPOItlHg 'tlie sheet preparatory to'its deposit upon-sai fingers, and means forreciproc'ating saidfingers'into and'outo'f mesh with the said tapes.

7 10-1 *In a -sheetdeliv' ery mechanism, a pluralityof. sheet. supporting fingers 'indepen'd- "ent of and s'eparated'from each other-at their endsfan'd each coin-prising means for propelling the sheet relatively to itself, in comblnation with a tape pulley shaft, a plurality of tape pulleys thereon with spaces between them, tapes passing around said pulleys,

and means for reclpr'o'catingsaid fingers be-- tween saidpulleys and into and out of mesh therewith;

11. Ina sheet delivery mechanism, a plu rality of sheet-,sugporti-ng fingers -separated ent of each other at their ends, and eac comprising sheet-propelling tapes and tape-operating means, in combina -'-tion with a second set of traveling tapes *al-" 'ternatingwith the firstsaid tapes, and means -fo'r reciprocating said 'ers and first said tapes, as a whole, into an out of mesh with the second said tapesfthe sheet propelling.

tapes of said fingler's being operated 'aszsaid fingers are move .12. In -a sheet delivery mechanism, the

combination of a set of travelin spaced tapes .for receiving and 'conve t e sheet, a set of fingers -separated from an independent of each other at their ends andalt'ern'at ing in arrangement with said. tapes, a second set ofj-trayeling tapes supported indiyidually 1 10 by said fingers, and means for reciprocating I 4 ,said fingers and second set -of tapes, as a whole, longitudinally into -and 'outof' mesh with the'first set of tapes.

- 13. In a sheet deliyery inechanism, a plurality of sheet supporting'fingersindependent of and separated from each other at their ends, sheet propellingtapes-mounted on said fingers ind vidually, pulleys by means of which said tapes are caused to travelflongitudinally of and'with respect to their respectiye fingers, asecond set of traveling tapes for receiving and conveying the sheet to the first set .of-ta es,mean's for reciprocating said fingers an .first set of tapes into and out of mesh with the second sald set of tapes, andjm'ea'n's for rotating all of said tape pull y in; unison 111-. one direction as the first said set of tapes, and means whereby said gers move away from the second said set of ta es.

said set of wipes moves towards the second two subscribing Witnesses, on this 25th day of November A. D. 1905.

HORACE PERCIVAL BROWN. CLiRENCE LORAN-JOHNSTON.

first set of tapes Wilh'emain stationary with relation to their respective fingers as the fin- Witnesses: n testlmony whereof we'have slgned our CLEMENZ'; BENNETT, names to thls specificafmon, 1n thepresence of C. P. KENNEDY. 

